<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <br><br>


    <form action="target.html">
        <input type="text "name="username" value="hello">

        <br><br>
        <!-- 
          autocomplete="off" 关闭自动完成功能
          readonly="readonly" 只读
          disabled="disabled" 禁用
          autofocus="autofocus" 自动获取焦点
        -->
        <input type="text"name="username"autocomplete="off">
        <input type="text" name="username">
        <br><br>
        <input type="color">
        <input type="submit">
        <input type="password" name="password" value="123456">
        <!-- 普通按钮 -->
        <input type="button" value="按钮">
        <!-- 重置按钮 -->
        <input type="reset">
        <input type="email">
        <br><br>
        <button type="submit">提交</button>
        <button type="reset"> 重置</button>
        <button type="button">按钮</button>
    </form>
</body>
</html>